Allah's Messenger (ﷺ) said, "Cut the moustaches short and leave the beard (as it is).
Sahih al-Bukhari Book 77, Hadith 110
← Previous Hadith Ibn `Umar said, The Prophet (ﷺ) said, 'Do the opposite of what the pagans do. Keep the beards and cut the moustaches short.' Whenever Ibn `Umar performed the Hajj or `Umra, he used to hold his beard with his hand and cut whatever remained outside his hold.

Sahih al-Bukhari Book 77, Hadith 109 Next Hadith → I asked Anas, "Did the Prophet (ﷺ) dye his hair?" Anas replied, "The Prophet (ﷺ) did not have except a few grey hairs."

Sahih al-Bukhari Book 77, Hadith 111